25th September 2016 EVENING BSNL TTA


list the wrong questions here 

question number 25 clear hai kya?

∫π/2 0 (log tanx) dx

in question no 27 none of the answers are right........isnt it?

Question 27.Which one of the following ia an analytic function


a) f(z)=sinz

b) f(z)=z

c) f(z)=Rz

d) f(z)=Im(z)

Correct Answer: f(z)=sinz

correct ans are 

Q32-a., Q34-A,  Q35-A,  Q36-B,  Q37-NONE,  Q50-B,  Q53-B,

Question 76.The ripple factor of a power supply is a measure of



Question 90.The maximum ac power output from a class A power amplifier is 10 W. What should be the minimum power rating of the transformer used?

Question 91.If a high degree of selectivity is desired, then doubletuned

circuit should have



Question 111.Major disadvantage of using three sets of SCRs for variable voltage speed control of a SCIM is the 

Q122-D, 132-C,  135-B, 

Q146-D,  148-A, 149-NONE,  Q157-A,  158-B,  159-C,,  160-A, 161-A, 166-NONE,  

  167-B,  171-D, 173-B, 174-B,, 175-C,, 

The output resistance of a voltage source is 4 ohm. Its internal resistance will be

181-C,,184-B,,186-B,,188-D,, 194-D,, 199-A, 200-B

Question 195.In RC inductive reactance, FET is so arranged that

Question 197.The data transfer rate of a double density floppy disc system is about ________

Guys its good to discuss the questions but do remember to update the list of wrong questions in the Google doc it will help everybody to challenge bsnl 

bhai jo question post kiya hu.....unko discuss kr lete hai

guys objection ke liye prrof chahiye....can we solve the numericals and add the pic of that in the format given???????????????